Noun | 1. | yellow spot - any of several fungous or viral diseases characterized by yellow spotting on the leaves plant disease - a disease that affects plants tomato streak - disease of a wide range of plants (tomatoes, potatoes, peas) resulting from a mixed infection of potato and tomato mosaic |
2. | ![]() region, area - a part of an animal that has a special function or is supplied by a given artery or nerve; "in the abdominal region" retina - the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve |